论文信息 - Interferometry with Faraday mirrors for quantum cryptography

Interferometry with Faraday mirrors for quantum cryptography

Quantum cryptography over 23 km of installed telecommunications fibre using a novel interferometer with Faraday mirrors is presented. The interferometer needs no alignment nor polarisation control and features 99.8% fringe visibility. A secret key of 20 kbit length with an error rate of 1.35% for 0.1 photon per pulse was produced.

[1] Gilles Brassard,et al. Experimental Quantum Cryptography , 1990, EUROCRYPT.

[2] Charles H. Bennett,et al. Quantum cryptography using any two nonorthogonal states. , 1992, Physical review letters.

[3] R. Hughes,et al. Quantum Cryptography , 1995, quant-ph/9504002.

[4] P. Townsend,et al. Quantum key distribution over distances as long as 30 km. , 1995, Optics letters.

[5] N. Gisin,et al. Interferometer using a 3 x 3 coupler and Faraday mirrors. , 1995, Optics letters.

[6] N. Gisin,et al. “Plug and play” systems for quantum cryptography , 1996, quant-ph/9611042.

[7] N. Gisin,et al. Quantum cryptography over 23 km in installed under-lake telecom fibre , 1996 .